5326-35-2Relevant academic research and scientific papers
Palladium-catalyzed tandem addition/cyclization in aqueous medium: Synthesis of 2-arylindoles
Yu, Shuling,Hu, Kun,Gong, Julin,Qi, Linjun,Zhu, Jianghe,Zhang, Yetong,Cheng, Tianxing,Chen, Jiuxi
, p. 4300 - 4307 (2017/07/10)
An efficient protocol to construct 2-arylindoles was developed through palladium-catalyzed tandem addition/cyclization of potassium aryltrifluoroborates with aliphatic nitriles in aqueous medium. The use of water as the reaction medium makes the synthesis process environmentally benign. A plausible mechanism for the formation of 2-arylindoles involving sequential nucleophilic addition followed by an intramolecular cyclization is proposed. Moreover, the utility of this catalytic tandem transformation was also demonstrated in an efficient gram-scale synthesis. This method provides an alternative synthetic tool for accessing a more diverse array of 2-arylindoles.
The Development of a Palladium-Catalyzed Tandem Addition/Cyclization for the Construction of Indole Skeletons
Yu, Shuling,Qi, Linjun,Hu, Kun,Gong, Julin,Cheng, Tianxing,Wang, Qingzong,Chen, Jiuxi,Wu, Huayue
, p. 3631 - 3638 (2017/04/11)
A palladium-catalyzed tandem addition/cyclization of 2-(2-aminoaryl)acetonitriles with arylboronic acids has been developed for the first time, achieving a new strategy for direct construction of indole skeletons. This system shows good functional group tolerance and remarkable chemoselectivity. In particular, the halogen (e.g., bromo and iodo) substituents are amenable to further synthetic elaborations thereby broadening the diversity of the products. Preliminary mechanistic experiments indicate that this transformation involves sequential nucleophilic addition followed by an intramolecular cyclization.
One-pot gold-catalyzed aminofluorination of unprotected 2-alkynylanilines
Arcadi, Antonio,Pietropaolo, Emanuela,Alvino, Antonello,Michelet, Véronique
supporting information, p. 2766 - 2769 (2013/07/19)
A tandem gold(I)-catalyzed aminocylization/fluorination and a two-step, one-pot gold(III)-catalyzed cyclization/electrophilic fluorination provide a convenient and general method for the synthesis of 3,3-difluoro-2-substituted- 3H-indoles in good yield un
